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Activated carbon filter paper and preparation method thereof

A technology of activated carbon and filter paper, which is applied in the field of activated carbon filter paper and its preparation, can solve the problems of waste of activated carbon, high price of activated carbon filter paper, increase of product production cost, etc., and achieve the effect of easy control, excellent filtering effect and long service life

Inactive Publication Date: 2013-03-27
杭州特种纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Activated carbon filter paper is a kind of filter material with a porous network structure, which is made by adding activated carbon powder, chemical fiber and functional additives to pulp with plant fiber as the carrier. It has good retention of residual chlorine and organic impurities in water. Adsorption and filtration, but the price of the existing activated carbon filter paper is too high, and the waste of activated carbon in the production process increases the production cost of the product

Method used

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  • Activated carbon filter paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Put 20kg of wood pulp and 16.5kg of polyester fiber into the pulper at the same rate for pulping. The pulped pulp enters the pulp tank through the pulp pump, and then pumps to the double-disc refiner for further processing. On-line refining to achieve a beating degree of 45°SR;

[0023] (2) Use the suction method to add 60kg of activated carbon powder with a particle size of 200 mesh into the closed mixing tank and mix it with water, and stir evenly.

[0024] (3) Add the wet activated carbon into the pulp slurry, stir evenly to obtain a pulp, and the pulp is formed by inclined wire to obtain base paper.

[0025] (4) Take 2kg of wet strength agent PAE, 1kg of dry strength agent AKD, and 0.5kg of retention aid cationic polyacrylamide, mix and stir evenly, put them into the impregnation machine, and pass the base paper obtained above through the unwinding frame and the guide. The paper roll enters the impregnation machine, adjust the guide roller and paper guide rolle...

Embodiment 2

[0030] (1) Put 15kg of wood pulp and 12kg of polyester fiber into the pulper at the same rate for pulping. The pulped pulp enters the pulp tank through the pulp pump, and then pumped to the double-disk refiner for online processing. Refining reaches a beating degree of 45°SR;

[0031] (2) Use the suction method to add 70kg of activated carbon powder with a particle size of 250 mesh into the closed mixing tank and mix it with water, and stir evenly.

[0032] (3) Add the wet activated carbon into the pulp slurry, stir evenly to obtain a pulp, and the pulp is formed by inclined wire to obtain base paper.

[0033] (4) Take 1.5kg of wet strength agent PAE, 1kg of dry strength agent AKD, and 0.5kg of retention aid cationic polyacrylamide, mix them evenly, put them into the impregnation machine, and pass the base paper obtained above through the unwinding rack and guide rollers into the dipping machine, adjust the guide rollers and guide rollers of the unwinding frame, so that the b...

Embodiment 3

[0038] (1) Put 18kg of wood pulp and 15kg of polyester fiber into the pulper at the same rate for pulping. The pulped pulp enters the pulp pool through the pulp pump, and then pumped to the double-disc refiner for online processing. Refining reaches a beating degree of 45°SR;

[0039] (2) Add 64kg of activated carbon powder with a particle size of 300 mesh into the closed mixing tank by suction method and mix with water, stir evenly,

[0040] (3) Add wet activated carbon into the pulp slurry, stir evenly to obtain a pulp, and form the pulp through inclined wire to obtain base paper;

[0041] (4) Take 1.6kg of wet strength agent PAE, 0.8kg of dry strength agent AKD, and 0.6kg of retention aid cationic polyacrylamide, mix them evenly, put them into the impregnating machine, and pass the above-mentioned The paper frame and paper guide roller enter the impregnation machine, adjust the paper unwinding frame guide roller and paper guide roller, so that the base paper is in a tensio...

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Abstract

The invention relates to an activated carbon filter paper. The activated carbon filter paper is prepared from the following components, by weight percentage: 15-20% of a wood pulp, 10-20% of polyester, 50-70% of activated carbon, 0.8-2.0% of a PAE wet strength agent, 0.6-1.0% of an AKD dry strength agent, and 0.5-0.7% of a retention aid. The activated carbon filter paper prepared by the invention has advantages of excellent wet tensile index and filtering effect, simple production process, easiness to control and a long service life.

Description

technical field [0001] The invention belongs to the technical field of detection test paper, and in particular relates to an activated carbon filter paper and a preparation method thereof. Background technique [0002] Nowadays, the society has higher and higher requirements for the quality of urban tap water, and it is required to meet the standard of direct drinking. The traditional water purification method mainly uses the high adsorption performance of the porosity of activated carbon particles to make activated carbon columns or activated carbon particle filter layers. Tap water is treated by outsourcing PP nonwovens. In recent years, due to the miniaturization and convenience requirements for household water purifiers, developed countries such as Europe and the United States have begun to produce special activated carbon filter paper for water purifiers. [0003] Activated carbon filter paper is a kind of filter material with a porous network structure, which is made ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/08D21H23/24D21H21/18D21H21/20D21H21/10
Inventor 吴安波
Owner 杭州特种纸业有限公司
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